Slow starting engine

Discussion in 'Gas Engines/Drives/Transmissions/Props' started by Loyd Dinneen, Jan 23, 2018.

  1. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    OK thanks
     
  2. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    Took the carb off and have it stripped down. I ordered the kits and had to call them and order the metering jet as some one had been in there before and screwed it up, it still worked but was all chewed up also discovered after watching the video that why my choke is not working is there is a little cylinder that is in the housing and attached to the choke arm bracket and activates the choke is missing, plus the idiots siliconed down the base gasket to the carb. Man it takes all types, if don't know what your doing don't screw with it. Anyway waiting for the kits and will rebuild the carb and look and see if I can find another choke housing, junk carb, or just that part so I can fix it. Kind of solves why the choke doesn't work properly. Oh also the carb was super dirty inside.
     
    NorCal Boater likes this.
  3. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    For all of you that have posted replies to my post thank you very much,now for a update. I have rebuilt the carb , reinstalled it, and started the motor. I gave a little shot of fuel to load the carb and it fired right up. I need to adjust the air fuel mixture and had to adjust the idle a little. What I did run into is that someone had been into the carb before. They silicone sealered the base gasket to the carb and if they rebuilt it they lost a few parts such as the check ball in the accellerator pump housing, damaged the power valve,and the choke pulloff piston in the choke housing was gone. To top it all off the carb was filthy dirty inside with crud and some corrision. It took alot of scrubbing and wire brushing to clean it up along with the soaking in carb cleaner soak. The carb kit I got had some missing parts or wrong so I had to go to a carb shop to get them. I manufactured the choke piston out of 1/2" solid alum rod and a part out of a fishing reel. So overall a simple job wasn't as simple as it could of been but the result turned out good. I still have to try the startup cold and without help in the morning hopefully that will be good, will post results. Have a slip at the lake waiting for the boat.
     
  4. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    For all of you fine members that have been following my hard starting engine issue I have some great news, It started right up first crank today!!!!!! It seemed that the carb was the issue for those who may have the same problem. A rebuild with a good cleaning and adding the missing parts that the last person didn't put in did the trick. The missing accelerator check ball I think was the problem. Now I can take the boat to the lake and put it in the slip I reserved today, time to go boating!!!!!(oh and don't forget the fishing)
     
  5. BillK2632

    BillK2632 Well-Known Member SILVER Sponsor

    Jun 25, 2009
    Lake Norman, NC
    1999 185 Bowrider,
    Mercruiser 4.3, Alpha I
    Nice, glad to hear it worked out. Carburetors are amazing little things, simple and complicated at the same time.
     
  6. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    Thats for sure I guess the old saying keep it simple holds true. lol
     
  7. Loyd Dinneen

    Loyd Dinneen Member

    201
    Jul 29, 2017
    Las Vegas
    1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
    Twin 470 Mercruisers
    For all of you that was following this post well good news is the carb still works, bad news is still not at the lake as I have had to rebuild both outdrives and then I hope it will be done. That story is on the outdrive section if interested.
     

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